MPEC 2024-P107 : COMET C/2023 TD22 (Lemmon)
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M.P.E.C. 2024-P107 Issued 2024 August 9, 04:44 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET C/2023 TD22 (Lemmon)
H. Sato reports cometary activity of a minor planet 2023 TD22 (discovered
by Mt. Lemmon Survey - G96 on Oct. 12, 2023 UT) as observed in 10 stacked
60-second exposures on Jul. 3 UT from iTelescope Deep Sky Chile (X07),
noting a very condensed 8" coma. Additional reports of cometary features are
as follows:
OC Date Reporter Coma Tail PA Exposures
Q62 2024-07-04 H. Sato 8" 12x60s
Q62 2024-08-02 D. De Martin 10"
157 2024-08-07 R. Haver 10" 45" 255 30x90s
Z28 2024-08-07 D. De Martin 10" 8" 240
P98 2024-08-07 K. Yoshimoto 14" 12" 240 27x60s
Z28 2024-08-08 D. De Martin 11" 10" 240-340
Observations:
CK23T22D C2023 09 26.50552704 43 26.780+13 38 45.64 21.89GVEP107F52
CK23T22D C2023 09 26.51637104 43 26.239+13 38 43.30 21.80GVEP107F52
CK23T22D C2023 09 26.52725804 43 25.712+13 38 40.79 21.96GVEP107F52
CK23T22D C2023 09 26.53814304 43 25.207+13 38 39.12 21.91GVEP107F52
CK23T22D C2023 10 07.49168004 33 05.190+12 58 51.04 21.18GVEP107F52
CK23T22D C2023 10 07.50337404 33 04.406+12 58 48.42 20.90GVEP107F52
CK23T22D C2023 10 07.51508004 33 03.647+12 58 45.40 21.15GVEP107F52
CK23T22D C2023 10 07.52669804 33 02.876+12 58 42.80 21.28GVEP107F52
CK23T22D*1C2023 10 12.38144504 27 21.366+12 38 05.24 21.54GVEP107G96
CK23T22D 1C2023 10 12.38752504 27 20.887+12 38 02.40 VEP107G96
CK23T22D 1C2023 10 12.39268804 27 20.516+12 38 01.64 20.78GVEP107G96
CK23T22D 1C2023 10 12.39888204 27 20.070+12 37 59.88 20.88GVEP107G96
CK23T22D C2023 10 12.46793504 27 14.938+12 37 41.84 21.46wXEP107F51
CK23T22D KC2023 10 12.47150404 27 14.544+12 37 40.30 21.62GVEP107V06
CK23T22D KC2023 10 12.47523004 27 14.267+12 37 39.50 21.22GVEP107V06
CK23T22D KC2023 10 12.47895704 27 13.986+12 37 38.78 21.15GVEP107V06
CK23T22D C2023 10 12.47971804 27 14.060+12 37 38.72 21.28wXEP107F51
CK23T22D KC2023 10 12.48268504 27 13.691+12 37 37.38 21.14GVEP107V06
CK23T22D C2023 10 12.49379304 27 12.986+12 37 34.96 21.36wXEP107F51
CK23T22D C2023 10 12.50552004 27 12.091+12 37 31.99 21.80wXEP107F51
CK23T22D KC2023 10 13.32019104 26 10.43 +12 33 51.8 21.5 VuEP107H21
CK23T22D KC2023 10 13.32861004 26 09.79 +12 33 49.2 21.1 VuEP107H21
CK23T22D KC2023 10 13.33020004 26 09.65 +12 33 48.8 21.2 VuEP107H21
CK23T22D KC2023 10 13.33338104 26 09.40 +12 33 48.4 21.6 VuEP107H21
CK23T22D KC2023 10 16.50229 04 21 58.24 +12 19 03.3 20.7 RVEP107691
CK23T22D KC2023 10 16.50827 04 21 57.72 +12 19 01.2 21.1 RVEP107691
CK23T22D KC2023 10 16.51425 04 21 57.20 +12 18 59.5 21.2 RVEP107691
CK23T22D C2023 10 17.41986904 20 42.209+12 14 37.18 21.03GVEP107V00
CK23T22D C2023 10 17.42538804 20 41.752+12 14 35.45 20.74GVEP107V00
CK23T22D C2023 10 17.43088904 20 41.280+12 14 33.94 21.09GVEP107V00
CK23T22D C2023 10 17.43639504 20 40.816+12 14 32.32 21.15GVEP107V00
CK23T22D C2023 10 17.46405104 20 38.576+12 14 24.65 21.27wXEP107F52
CK23T22D C2023 10 17.47517604 20 37.661+12 14 21.41 21.30wXEP107F52
CK23T22D C2023 10 17.48630204 20 36.695+12 14 18.28 21.27wXEP107F52
CK23T22D C2023 10 25.34360804 08 43.764+11 33 28.04 20.51iXEP107F52
CK23T22D C2023 10 25.34871504 08 43.256+11 33 26.03 20.28iXEP107F52
CK23T22D C2023 10 25.35384604 08 42.754+11 33 24.30 20.51iXEP107F52
CK23T22D C2023 10 25.35895104 08 42.263+11 33 22.56 20.57iXEP107F52
CK23T22D C2023 11 03.52350503 52 42.606+10 39 32.40 20.50wXEP107F52
CK23T22D C2023 11 03.53450703 52 41.358+10 39 28.22 20.69wXEP107F52
CK23T22D C2023 11 03.54548603 52 40.123+10 39 24.21 20.62wXEP107F52
CK23T22D 1C2023 11 05.39809503 49 11.478+10 27 46.69 20.60GVEP107G96
CK23T22D 1C2023 11 05.40324503 49 10.902+10 27 44.68 20.27GVEP107G96
CK23T22D 1C2023 11 05.40839303 49 10.297+10 27 42.84 20.30GVEP107G96
CK23T22D C2023 11 16.33126903 27 26.232+09 15 40.00 20.23wXEP107F52
CK23T22D C2023 11 16.34419203 27 24.616+09 15 34.81 20.10wXEP107F52
CK23T22D C2023 11 16.35706903 27 23.016+09 15 29.78 20.39wXEP107F52
CK23T22D C2023 11 20.33552703 19 07.887+08 48 24.07 20.38wXEP107F52
CK23T22D C2023 11 20.35749103 19 05.120+08 48 15.10 20.26wXEP107F52
CK23T22D C2023 11 20.36849403 19 03.733+08 48 10.61 20.21wXEP107F52
CK23T22D C2023 12 08.37964402 42 14.776+06 50 33.28 20.43wXEP107F51
CK23T22D C2023 12 08.39227302 42 13.297+06 50 28.73 20.47wXEP107F51
CK23T22D C2023 12 08.40493502 42 11.814+06 50 24.22 20.50wXEP107F51
CK23T22D C2023 12 08.41765202 42 10.319+06 50 19.63 20.51wXEP107F51
CK23T22D C2023 12 13.24646102 33 03.234+06 22 39.23 20.45wXEP107F51
CK23T22D C2023 12 13.25806702 33 01.936+06 22 35.43 20.51wXEP107F51
CK23T22D C2023 12 13.27346602 33 00.226+06 22 30.33 20.51wXEP107F51
CK23T22D C2023 12 13.28516102 32 58.924+06 22 26.46 20.63wXEP107F51
CK23T22D 1C2024 01 13.11280401 49 15.564+04 33 17.14 20.68GVEP107G96
CK23T22D 1C2024 01 13.11808001 49 15.244+04 33 17.03 20.83GVEP107G96
CK23T22D 1C2024 01 13.12334401 49 14.963+04 33 16.42 20.73GVEP107G96
CK23T22D 1C2024 01 13.12861801 49 14.639+04 33 15.84 20.53GVEP107G96
CK23T22D 0C2024 07 03.38956 01 27 38.49 +10 05 19.8 VEP107X07
CK23T22D 0C2024 07 03.39396 01 27 38.29 +10 05 19.9 18.8 GVEP107X07
CK23T22D 1C2024 07 04.81909 01 26 26.23 +10 04 10.1 VEP107Q62
CK23T22D 1C2024 07 04.82420 01 26 25.93 +10 04 09.8 18.5 GVEP107Q62
CK23T22D C2024 07 09.58327801 21 47.820+09 57 43.70 18.43oVEP107T08
CK23T22D C2024 07 09.58868201 21 47.400+09 57 43.09 18.79oVEP107T08
CK23T22D C2024 07 09.59191601 21 47.220+09 57 43.06 18.53oVEP107T08
CK23T22D C2024 07 09.60397301 21 46.368+09 57 41.18 18.70oVEP107T08
CK23T22D C2024 07 12.33031701 18 37.939+09 52 06.74 18.66oVEP107W68
CK23T22D C2024 07 12.33076801 18 37.889+09 52 07.18 18.63oVEP107W68
CK23T22D C2024 07 12.33215901 18 37.836+09 52 06.20 18.73oVEP107W68
CK23T22D C2024 07 12.33260901 18 37.834+09 52 06.49 18.73oVEP107W68
CK23T22D C2024 07 12.33532301 18 37.534+09 52 05.41 18.63oVEP107W68
CK23T22D C2024 07 12.33713101 18 37.442+09 52 05.48 18.38oVEP107W68
CK23T22D C2024 07 12.34076001 18 37.186+09 52 06.17 18.61oVEP107W68
CK23T22D C2024 07 12.35764901 18 35.897+09 52 03.32 18.11oVEP107W68
CK23T22D KB2024 07 14.11431 01 16 22.080+09 47 32.64 18.9 GXEP107L69
CK23T22D KB2024 07 14.12233 01 16 21.326+09 47 31.56 18.2 GXEP107L69
CK23T22D KB2024 07 14.13035 01 16 20.686+09 47 30.48 18.3 GXEP107L69
CK23T22D C2024 07 17.51186401 11 33.043+09 36 39.74 17.99oVEP107T05
CK23T22D C2024 07 17.52528901 11 31.853+09 36 36.86 18.30oVEP107T05
CK23T22D C2024 07 17.52845501 11 31.586+09 36 36.14 18.29oVEP107T05
CK23T22D C2024 07 17.53395801 11 31.087+09 36 34.74 18.32oVEP107T05
CK23T22D C2024 07 21.57883101 04 49.922+09 19 30.86 18.17oVEP107T05
CK23T22D C2024 07 21.58199401 04 49.586+09 19 29.17 18.15oVEP107T05
CK23T22D C2024 07 21.58750301 04 48.984+09 19 28.85 18.13oVEP107T05
CK23T22D C2024 07 21.59347101 04 48.329+09 19 26.40 17.93oVEP107T05
CK23T22D C2024 07 28.33535200 51 00.454+08 38 43.69 17.92oVEP107W68
CK23T22D C2024 07 28.33717300 51 00.170+08 38 43.30 18.13oVEP107W68
CK23T22D C2024 07 28.34416400 50 59.189+08 38 39.48 17.70oVEP107W68
CK23T22D C2024 07 28.37156200 50 55.334+08 38 28.14 18.19oVEP107W68
CK23T22D C2024 07 29.54309100 48 08.594+08 29 27.42 17.60oVEP107T05
CK23T22D C2024 07 29.54489900 48 08.330+08 29 26.74 17.96oVEP107T05
CK23T22D C2024 07 29.54806100 48 07.882+08 29 25.22 17.94oVEP107T05
CK23T22D C2024 07 29.57339400 48 04.142+08 29 12.88 17.93oVEP107T05
CK23T22D C2024 08 02.60458400 37 31.918+07 53 30.84 17.59oVEP107T05
CK23T22D C2024 08 02.60876400 37 31.210+07 53 28.36 17.74oVEP107T05
CK23T22D C2024 08 02.62150300 37 29.023+07 53 20.72 17.30oVEP107T05
CK23T22D C2024 08 02.62701200 37 28.123+07 53 17.56 17.64oVEP107T05
CK23T22D lC2024 08 02.76704 00 37 04.490+07 51 58.50 17.6 rZEP107Q62
CK23T22D lC2024 08 02.77131 00 37 03.763+07 51 55.87 17.7 rZEP107Q62
CK23T22D lC2024 08 02.77557 00 37 03.031+07 51 53.39 17.9 rZEP107Q62
CK23T22D C2024 08 03.05807800 36 15.106+07 49 03.90 17.75oVEP107M22
CK23T22D C2024 08 03.06353900 36 14.153+07 49 00.37 17.63oVEP107M22
CK23T22D C2024 08 03.06535300 36 13.831+07 48 59.51 17.53oVEP107M22
CK23T22D C2024 08 03.07080900 36 12.888+07 48 56.02 17.68oVEP107M22
CK23T22D C2024 08 04.49034300 32 04.229+07 33 59.29 17.65oVEP107T08
CK23T22D C2024 08 04.49228000 32 03.874+07 33 58.28 17.31oVEP107T08
CK23T22D C2024 08 04.49698500 32 03.041+07 33 55.37 17.40oVEP107T08
CK23T22D C2024 08 04.53213900 31 56.650+07 33 32.18 17.39oVEP107T08
CK23T22D C2024 08 06.42517600 26 05.537+07 11 55.79 17.50oVEP107T05
CK23T22D C2024 08 06.42710000 26 05.117+07 11 54.35 17.23oVEP107T05
CK23T22D C2024 08 06.43071900 26 04.430+07 11 51.68 17.50oVEP107T05
CK23T22D C2024 08 07.01226600 24 11.904+07 04 53.26 17.17oVEP107M22
CK23T22D C2024 08 07.01410600 24 11.537+07 04 52.10 17.11oVEP107M22
CK23T22D C2024 08 07.03903300 24 06.626+07 04 33.35 17.19oVEP107M22
CK23T22D C2024 08 07.04312000 24 05.837+07 04 30.40 17.53oVEP107M22
CK23T22D KC2024 08 07.06206 00 24 02.15 +07 04 10.0 17.8 RqEP107157
CK23T22D KC2024 08 07.06737 00 24 01.10 +07 04 06.2 17.7 RqEP107157
CK23T22D KC2024 08 07.07267 00 24 00.07 +07 04 02.3 17.6 RqEP107157
CK23T22D KC2024 08 07.07798 00 23 59.03 +07 03 58.4 17.8 RqEP107157
CK23T22D KC2024 08 07.08330 00 23 57.96 +07 03 54.7 17.7 RqEP107157
CK23T22D KC2024 08 07.08860 00 23 56.92 +07 03 50.7 17.8 RqEP107157
CK23T22D 3C2024 08 07.14299 00 23 46.253+07 03 10.22 18.0 rZEP107Z28
CK23T22D 3C2024 08 07.15844 00 23 43.195+07 02 58.78 17.7 rZEP107Z28
CK23T22D KC2024 08 07.63459 00 22 09.39 +06 57 01.1 17.4 TVEP107P87
CK23T22D KC2024 08 07.64265 00 22 07.76 +06 56 54.6 VEP107P87
CK23T22D KC2024 08 07.65076 00 22 06.15 +06 56 48.8 VEP107P87
CK23T22D 3B2024 08 08.08762 00 20 38.450+06 51 12.85 17.7 rZEP107Z28
CK23T22D 3B2024 08 08.09256 00 20 37.440+06 51 09.04 17.8 rZEP107Z28
CK23T22D 3B2024 08 08.09749 00 20 36.437+06 51 05.26 17.8 rZEP107Z28
CK23T22D C2024 08 08.44998200 19 24.982+06 46 30.79 17.54oVEP107T08
CK23T22D C2024 08 08.45289300 19 24.377+06 46 28.52 17.21oVEP107T08
CK23T22D C2024 08 08.48847300 19 17.054+06 46 00.77 17.13oVEP107T08
CK23T22D C2024 08 08.50519100 19 13.596+06 45 47.63 17.41oVEP107T08
Observer details:
157 Frasso Sabino. Observers R. Haver, R. Gorelli. Measurer R. Haver.
0.37-m f/6.80 Cassegrain + CMOS.
691 Steward Observatory, Kitt Peak-Spacewatch. Observer R. A. Mastaler.
0.9-m f/3 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, P. Minguez, A.
Schultz, I. Smith, J. Herman. Measurers K. Chambers, T. de Boer, J.
Fairlamb, H. Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Lowe, P. Minguez, A.
Schultz, I. Smith, J. Herman. Measurers K. Chambers, T. de Boer, J.
Fairlamb, H. Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observers D. Rankin, J. B. Fazekas, H. Groeller.
Measurers E. C. Beshore, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs,
A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G.
J. Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos, T.
Beuden, V. F. Carvajal. 1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.81-m f/4.0 astrograph + CCD.
L69 LaCaille Observatory, Pretoria. Observer J. F. S. Theron. 0.28-m f/1.9
Schmidt-Cassegrain + CMO.
M22 ATLAS South Africa, Sutherland. Observers L. Denneau, R. Siverd, J.
Tonry, H. Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, J.
Robinson, R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector + CCD.
P87 Hirao Observatory, Yamaguchi. Observer K. Yoshimoto. 0.20-m f/8 Ritchey-
Chretien + CMO + f/5.4 focal Reducer.
Q62 iTelescope Observatory, Siding Spring. Observers H. Sato, D. De Martin.
0.51-m f/6.8 astrograph + CCD, 0.51-m f/6.8 reflector + CCD.
T05 ATLAS-HKO, Haleakala. Observers L. Denneau, R. Siverd, J. Tonry, H.
Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, J. Robinson,
R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector + CCD.
T08 ATLAS-MLO, Mauna Loa. Observers L. Denneau, R. Siverd, J. Tonry, H.
Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, J. Robinson,
R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector + CCD.
V00 Kitt Peak-Bok. Observer R. A. Mastaler. Measurers M. J. Brucker, C. E.
Woodward, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, H. Groeller, J.
K. Hogan, R. A. Kowalski, S. M. Larson, C. Lejoly, G. J. Leonard, R. A.
Mastaler, R. S. McMillan, D. Rankin, R. L. Seaman, A. Serrano, F. C.
Shelly, K. W. Wierzchos. 2.25-m reflector + 4x4K mosaic CCD.
V06 Catalina Sky Survey-Kuiper. Observer J. B. Fazekas. Measurers E. C.
Beshore, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D.
Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.55-m reflector +
1K CCD.
W68 ATLAS Chile, Rio Hurtado. Observers L. Denneau, R. Siverd, J. Tonry, H.
Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, J. Robinson,
R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector + CCD.
X07 iTelescope Deep Sky Chile, Rio Hurtado. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD.
Z28 Northern Skygems Observatory, Nerpio. Observer D. De Martin. 0.51-m
f/6.8 CDK + CCD, 0.51-m f/6.8 CDK + CMO.
Orbital elements:
C/2023 TD22 (Lemmon)
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5
T 2024 Sept. 16.29337 TT Rudenko
q 2.3568103 (2000.0) P Q
z +0.0207694 Peri. 32.53496 +0.89045990 -0.45478043
+/-0.0000041 Node 5.55631 -0.44482022 -0.86246501
e 0.9510506 Incl. 170.48969 -0.09600075 -0.22210101
From 137 observations 2023 Sept. 26-2024 Aug. 8, mean residual 0".3.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2024 07 10 01 21 20.4 +09 56 59 2.3354 2.4712 85.4 24.2 18.3
...
2024 07 25 00 58 16.8 +09 00 59 1.9527 2.4273 105.3 23.8 17.8
...
2024 08 02 00 39 12.7 +07 59 24 1.7628 2.4080 117.7 21.9 17.5
...
2024 08 08 00 20 56.2 +06 52 24 1.6344 2.3955 128.0 19.5 17.4
2024 08 09 00 17 31.6 +06 39 13 1.6146 2.3936 129.8 19.0 17.3
2024 08 10 00 14 00.7 +06 25 25 1.5953 2.3917 131.6 18.5 17.3
...
2024 08 16 23 50 40.4 +04 49 11 1.4923 2.3814 143.2 14.8 17.1
...
2024 08 24 23 13 59.7 +02 05 33 1.3961 2.3705 159.7 8.5 17.0
...
2024 09 08 21 56 45.4 -04 01 58 1.3781 2.3586 162.5 7.4 16.9
M. P. C. Staff (C) Copyright 2024 MPC M.P.E.C. 2024-P107
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